Event ID - 168

Event Id168
DescriptionState information could not be updated. Duplicates may be sent or received during the next synchronization cycle for remote dirsync req_name.(Thread 504).
Event InformationAccording to Microsoft:
The errors listed in the "Symptoms" section may occur when the Msvcrt.dll file has been updated to version 6.x or later.
Replace the Msvcrt.dll file with the 5.00.0000.7303 default version that is included with Windows NT.
Reference LinksXFOR: Exchange Server 5.5 DXA Returns DS_E_BAD_ARGUMENT

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.